Arched roofs



Jan. 2, 1962 L. H. HosBElN ETAL 3,015,288'

ARCHED RooFs Filed July 25, 1958 4 Sheets-Sheet 1 FIG., l

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ARCHED RDOFS 4 Sheets-Sheet 2 Filed July 25, 1958 LOILSJ .1705276171 BY M5 y l arneys Jan. 2, 1962 L. H. HosBElN ETAL 3,015,288

ARCHED RooFs Filed July 25, 1958 4 Sheets-Sheet 3 jfG, 5

mond E 01/61 Edy INVENTORS United States Patent O1 3,915,233 ARCHED ROSES Louis H. Hosbein, Glencoe, and Raymond E. ver, Mokena, Ill., assignors to lvl. H. Detrick Company, Chicago, Ill., a corporation of Delaware Filed July 25, 1953, Ser. No. '751,tv`3 9 Clm'ms. (Cl. 11G- 99) Our invention relates to arched roofs such as are used in connection with open hearth furnaces. Our invention is designed to provide a roof in which the bricks which form the arch are substantially securely held in their proper arched condition so as to minimize the tendency of the bricks upon tiring of the furnace either to tend to move upwardly or downwardly. ln furnaces such as this it is desirable to provide simple means to thus hold the bricks in their allotted positions. We will explain our invention more in detail in connection with the accompanying drawings in which:

FIG. 1 is a transverse sectional view of the upper portion of an open hearth furnace showing our arched roof in position;

FG. Z is a sectional View on line Z--Z of FIG. l;

FIG. 3 is a sectional View on' line 3-3 of FIGZ;

FlG. 4 is a sectional view on line 4-4 of FIG. 3;

FIG. S is a detailed View of the manner in which the roof is adjustably mounted to its supporting framework;

FIG. 6 is a fragmentary perspective view showing means whereby the brick are held in their allotted positions;

FIG. 7 is a view on line 7--7 of FIG. 6 of a single brick;

FIG. 8 is a view similar to the view of FIG. 3 but showing a modified form of our invention;

FIG. 9 is a sectional view on line 9-9 of FlG. 8, and

FIG. 10 is a top sectional view on line 10-10 of FIG. 9 showing only the ribs of longer brick.

Referring now more particularly to FIGS. 1 to 7, we show a supporting framework consisting of the uprights 1 having a crosspiece 2 firmly attached thereto. Suitable adjustable hangers 3 extend from said cross-piece 2 and, as will presently be clear, support the roof in its arched condition. The roof itself is made up of refactory brick 4 arranged in transverse rows such as shown in FIG. 2, each of said rows formed in an arched manner as shown more clearly in FIG. 1. The brick themselves, consisting as they do of refractory material, have attached thereto metallic top plates 5 which in some cases may extend down the sides of the brick and also interiorly thereof as shown in FlG. 7, the metallic side pieces being numbered 6 and the embedded metallic plates being numbered 7.

In constructing the roof a scaffolding is built having an arched top upon which the brick are laid. The brick, after the scalfolding has been removed, may shift downwardly a trie, so as to present the more or less final arched position which the brick are supposed to maintain.

After these brick have been mounted in place on the scafold, straight rods 8 are put in place overlying each of the longitudinal rows of said brick and said rods are suitably fastened to the metallic tops of said brick preferably by being spot-welded as shown at 9 in FIG. 6 and elsewhere.

These rods S run lengthwise of the furnace as shown more clearly in FIGS. 2 and 6 and thus form a backing to prevent substantial upward or downward movement of said brick.

We further provide channel-shaped elements 11 which conform to the arched upper surface of the roof, and these channels 11 are spot-welded or otherwise suitably fastened at suitable intervals to the rods 8 as shown more ice maintain the brick in a' uniform position as is apparent,

whereas the channel-shaped elements maintain the vari- Y ous portions of the roof in its arched condition. Any

number of supports 3 may of course be provided as needed. Theroof as thus explained is held in place by the framework 1 2, the abutments 1li, the rods 8 and the channel-shaped elements 11. The brick in the roof are thus rather securely held in their arched position, thus to provide a more simple arrangement for supporting such a roof in position. The structure lends itself particularly to the building of such a roof.

In FIG. 6 we show asbestos spacers 14 as a yieldable element between certain of the bricks.

In FlGS. 8, 9 and 1G, we show a modified form of invention in that we provide certain shorter brick 15 between transverse and longitudinal rows of longer brick 17 which are held in place by the normal pressure existing in an arched roof exerted by said longer brick. VIn this particular case no rods 8 and are used to connect the shorter brick 15. If desired there is a rectangular open space 16 above these shorter brick 15 which is surrounded by the upper portions of the longer brick 17 used in this type of roof. In this modified structure the shorter brick are not spot-welded to any portion of the supporting framework but retain their position purely by the normal pressure existing in an arched roof exerted by the transversely adjacent brick 17. As shown in FIGS. 8, 9 and l0 the channels 11a are therefore only long enough in some cases to span the width of the intermediate ribs formed by the longer brick. This structure lends itself very readily to rebuilding and repair.

From what has been thus described it is thought that our invention will be readily clear to those skilled in the art and that Various modifications may be made without departing from its spirit, all as embodied in the accompanying claims.

We claim:

l. The combination with a framework of an arched refractory furnace roof having refractory bricks mounted in iixed position relative to adjacent bricks, said bricks being each provided with metallic means secured to said bricks against any movement relative thereto, metallic members extending crosswise of the roof, securing means connecting said metallic means and said metallic members rigidly to each other, metallic members extending longitudinally of said roof, securing means connecting said longitudinally extending metallic members and said crosswise extending metallic members rigidly to each other and means for anchoring said longitudinally extending metallic members to said framework.

2. The combination with a framework of an arched refractory furnace roof having refractory bricks mounted in fixed position relative to adjacent bricks, said bricks being each provided with metallic means secured to said bricks against any movement relative thereto, metallic members extending crosswise of the roof, securing means connecting said metallic means and said metallic members rigidly to each other, metallic members extending longitudinally of said roof, securing means connecting said longitudinally extending metallic members and said crosswise extending metallic members rigidly to each other and means for anchoring said longitudinally extending Vments in said furnace, an outer metal supporting framework and a supplemental metal framework supported from said' supporting framework, said supplemental framework including rigid frame members extending longitudinal of said furnace in spaced relation to each .other transversely of saidfurnace'and rigid frame members extending transversely of said furnace in spaced relation to each other longitudinally of said furnace, each of said longitudinally extending frame members intersecting all said transversely extending frame members, means rigidly securing said intersecting frame members to' each other against any movement relative to each other at all Said intersections, bricks extending in longitudinally adjacent transversely extending arched rows between said abutments under said supplemental framework, and means rigidly securing each of a plurality of transversely `adjac'zent bricksV in fixed position to each of said transversely extending supplemental frame members including a metal member secured on each of said adjacent bricks against any movement relative thereto and means connecting said metal membersV rigidly to said transverse supplemental frame members against any movement with respect to said supplemental frame members, whereby the transversely adjacent bricks secured to one transversely extending supplemental frame member are held against all upand down movement relative to each other.

4. In a furnace, an arched roof and means for supporting said roof coriiprisingY transversely spaced' abutments in said furnace, an outer metal supporting frame- Y work anda supplemental metal framework supported` fromv said supporting framework, said supplemental :framework including rigidframe other transversely of said furnace andrigid frame members' extending transversely of said furnace in spaced re lation to each other longitudinally of said furnace, each of said longitudinally extending frame members intersectiong all said transversely extending frame members, means rigidly securing said intersecting frame members to each other against any movement relative to each other at all said intersections, bricks extending in longitudinally adjacent transversely extending arched rows between said abutments under said supplemental framework, and means rigidly securing each of a plurality of transversely adjacent bricks inxed position to each of said transversely extending supplemental frame members comprising a metal plate secured on each of said bricks against any movement relative thereto and means rigidly connecting said metal plates of each of said transversely adjacent bricks to said transversely extending supplemental frame members against any movement with respect thereto, whereby the transversely adjacent bricks secured to one transversely extending supplemental frame member are held against all up and down movement relative to each other.

5. In a furnace, an arched roof and means for supporting said roof comprising transversely spaced abutments in said furnace, an outer metal supporting framework and a supplemental metalv framework supported from said supporting framework, said supplemental framework including rigid frame members extending longitudinally of said furnace in spaced rela-tion to each other transversely of said furnace and rigid frame members extending transversely of said furnace in spaced Ielation to each other longitudinally of said furnace, each members extending l longltudmally of said furnaceV in spaced relation to each amazes of said longitudinally extending frame members intersecting all said transversely extending frame members, means rigidly securing said intersecting frame members to each other against any movement relative to each other at all said intersections, bricks extending in longitudinally adjacent transversely extending arched rows between said abutments under said supplemental framework, and means rigidly securing each of a plurality of transversely adjacent bricks in xed position to each of said transversely extending supplemental frame members comprising a metallic structure rigidly secured on each of said bricks against any movement relative thereto, said metallic structure having portions thereof embedded in said brick and a portion thereof extending across the top end of said brick, and means rigidly connecting said last mentioned portions of each of said metallic structures of said transversely adjacent bricks -to said transversely extending frame member against relative movement thereto, whereby the transversely adjacent bricks secured to one transversely extending supplemental frame member are'held against all up and down movement relative to each other. Y

6. In a furnace, an arched roof and means for sup` porting said roof comprising transversely spaced abutments in said furnace, an outer metal supporting framework and a supplemental metal framework supported from said supporting framework, said supplemental framework including rigid frame members extending longitudinally of said furnace in spaced relation to each other transversely of said furnace and rigid frame members extending transversely of said furnace in spaced relation to each other longitudinally of said furnace, each of said longitudinally extending frame members intersecting all said transversely extending frame members, welds rigidly securing said intersecting frame members to each other at all said intersections, bricks extendingY in longitudinally 'adjacent transversely extending arched rows between said abutments undersaid supplemental framework, saidroof being provided with means rigidly securing a plurality of transversely adjacent bricks in fixed position to each of said transversely extending supplemental frame members, said means including metal members on the top ends of said bricks rigidly secured on said bricks against any movement relative thereto, metal rods extending longitudinally of said furnace between said metal members and said transversely extending supplemental frame members and welds rigidly se- Y curing said metal members, said rods and said transverse frame members to each other, whereby said transversely adjacent bricks and bricks of longitudinally adjacent transverse rows are held against up and down movement relative to each other.

7. In a furnace, an arched' roof and means for supporting said roof comprising transversely spaced abutments in said furnace, an outer metal supportingl framework and a supplemental metal framework supported from said supporting framework, said supplemental framework including rigid frame members extending longitudinally of said furnace in spaced relation to each other transversely of said furnace and rigid frame members extending transversely of said furnace in spaced relation to each other longitudinally of said furnace, each of said longitudinally extending frame members intersecting all said transversely extending frame members, welds rigidly securing said intersecting frame members to each other at all said intersections, bricks extending in longitudinally adjacent transversely extending arched rows between said abutments under said supplemental framework, said roof being provided with means rigidly securing the transversely adjacent bricks of each of said transversely extending rows in fixed position to a transversely extending supplemental frame member comprising metal members extending across the -top ends of said bricks rigidly secured on said bricks against any movement relative thereto and metal rods'extending longitudinally of said furnace between said metal members and said transversely extending supplemental frame members and welds rigidly securing said metal members and said transverse frame members to said rods, whereby each of said bricks is held against up and down movement relative to all the bricks adjacent thereto.

8. In a furnace, an arched roof and means for supporting said roof comprising transversely spaced abutments in said furnace, an outer metal supporting framework and a supplemental metal framework supported from said supporting framework, said supplemental framework including rigid frame members extending longitudinally of said furnace in spaced relation to each other transversely of said furnace and rigid frame members extending transversely of said furnace in spaced relation to each other longitudinally of said furnace, each of said longitudinally extending frame members intersecting all said transversely extending frame members, welds rigidly securing said intersecting frame members to each other at all said intersections, rods extending longitudinally of said furnace in transversely spaced relation to each other under said transverse supplemental frame members and each intersecting all said transverse frame members and welds rigidly securing said rods to said transverse frame members at all said last mentioned intersections, bricks extending in longitudinally adjacent transversely extending arched rows between said abutments under said supplemental framework, metal members extending across the top ends of said bricks rigidly secured on said bricks against any movement relative thereto, said rods overlying said metal members, and welds rigidly securing said rods to said metal members, whereby said supplemental framework and metal members cooperate to hold each of said bricks in said arch against up and down movement relative to adjacent bricks.

9. In a furnace, an arched roof and means for supporting said roof comprising transversely spaced abutments in said furnace, an outer metal supporting framework and a supplemental metal framework supported from said supporting framework, Said supplemental framework including rigid frame members extending longitudinally of said furnace in spaced relation to each other transversely of said furnace and rigid frame members extending transversely of said furnace in spaced relation to each other longitudinally of said furance, each of said longitudinally extending frame members intersecting all said transverse extending frame members, welds rigidly l securing said intersecting frame members to each other at all said intersections, rods extending longitudinally of said furnace in transversely spaced relation to each other under said transverse supplemental frame members and each intersecting all said transverse frame members and welds rigidly securing said rods to said transverse frame members at all said last mentioned intersections, bricks extending in longitudinally adjacent transversely extending arched rows between said abutments under said supplemental framework, metal plates rigidly secured to each of said bricks against all movement relative thereto, said plates extending across the top ends of said bricks, said rods overlying said plates, and welds rigidly connecting said plates to said rods, whereby each of said bricks in said arch is held against up and down movement relative to adjacent bricks.

References Cited in the le of this patent UNITED STATES PATENTS 1,885,800 Burnet Nov. 1, 1932 2,187,669 Stewart Jan. 16, 1940 2,547,322 Heuer Apr. 3, 1951 2,717,564 Kreutzer Sept. 13, 1955 2,737,912 Kauth et al Mar. 13, 1956 2,781,006 Heuer Feb. 12, 1957 FOREIGN PATENTS 771,895 Great Britain Apr. 3, 1957 

